Vacuum-cup-releasing device for lamps.



'W.v1 v'DUNHANL VACUUM OUP RELEASING DEVICE POR LAMPS.

APPLICATIONPILED MAR.25, 1914.

Patented July 21, 1914.

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vices Ifor Lamps,

by a vacuum cup. v

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'WILLIAM P. DUNHAIVI, QF LOS ANGELES, CALIFORIA.

VACUUM-CUPeRELEASING DEVICE FOR LAMPS'.

Speciication of Letters Patent.

- Patented July. 2a, 1era;

' application med March sa 1 914. serial Nb. 827,024.

` To all rwhomt't may'concem."

a clear, full,and exact description.

This invention relates to .portable handl which are held inplacelampsfor the like,

The object of the'invention is to provide a means to readily dislodgethe vacuum cup from its holding position without eXertin any effort ormaterial pull on the part 1o the user. 1

In carrying out this invention,` I provide the usual-base and column fora stand device, which is generally for the purpose of carrying anelectric lamp, and I mount the reciprocating vacuum cuplwith its stemand spring, and its protruding hand piece forA causing the cup to attachitself topa `smooth f surface within a hollow column supported,

by the base. In addition to the, reciprocating stem for the vacuum cup,I provide a preferably flexible connection such las a wire, cord orchain, which is secured at one end to a lug on the rubber periphery ofthe vacuum cup, and at its other end is attached to a hand 'piecepreferably slidable on the shank of the attaching hand piece. A springholds both hand pieces apart, and permits the connection from the secondhand piece tothe cup to lie idle and slack so that the device may beattached to a smooth surfacein the manner hereinafter referred to. Uponthe user desiring to release the lvacuum cup he grasps the two handpieces, pinches them together, thereby lifting one edge of the vacuumcup and admitting air thereunder.

The device will then readily lend itself to.

' being detached without any effort on the part of the user.

The scope of my invention will be pointed out in the claims.

Inthe accompanying drawings: Figure is a side elevation of my improvedlamp. Fig. 2 is a central vertical section of the stand and column.Fig.V 3 is an enlarged detail sectionof the lsuction cup, the reliefposition being shown in dotted lines.

As shown in the drawings, my invention consists of the hollow base 1,preferably provided with a reel 2 for the DUNHAM," United States,.residing at y umn,

flexible cord which is attached to the connecting plug 3lV A hollowcolumn 4 extends fromthe base l, and a. vtubular post 5 secured to thereel is adapted to rotate within the column 4'; an attaching suction cup'of rubber 6 carried on the end of a stem- 7 and provided with aprotruding-finger piece 8 is carried within the reel and tubular postfor the 'purpose of permitting a depression of `the stem 7 and aflattening of the suction cup 6. against a. plain surface, such yasglass, so that the device may be supported in the position of l Fig. -1.In lamps of this description a very decided effort is necessary indislodging a lamp lfrom its suction position. According to thisinvention,

near the periphery of the suction' disk, and

vI connect a substantially flexible Wire 10 to the cup terminating in alinger piece l2 sli'ding'in a` guide 13 on the stem of the hand piece 8.A spring 14C normally tends o .hold the cup inv the position shown in1g. 2. When it is desired to detach' the `vacuum -held lamp according tothe device .of my invention, the finger piece A12 and the finger piece 8are pinched together with a thumb and forefinger of the hand, theieXible wire 10 caused` tolift the lug 9, and4 admit air under one edgeof the suction cup' 6, so that the spring 14 will immediately retractthe cup into the base anddetach the lamp without effort that isotherwise necessary. l

If desired, a spring l5 may be provided between the two finger pieces tonormally hold them in the position of Fig. 2.

I claim as my invention:

I provide a lug 9 at or 1.` The herein described portable stand Vcomprising a base, a column, a suction valve mounted so as to bereciprocated -in the coland a controlling device adapted to lift an edgeofthe suction valve to admit air thereunder. l 2. The herein describedportable stand `comprising a base,V a hollow column, a' stem passingthrough the column, projecting hand piece, ed at the end of the andhaving a a vacuumcup mountstem, the .column and base supported by thestem, in combination with a second hand piece movable with relation tothe first and connected to a portion of the vacuum cup, whereby thevacuum cup may be lifted at one point to admit air thereunder.

3. The herein described portablel stand4 comprising a base, a. hollowcolumn, a stem passing through the column, and having a projecting handpiece, a vacuum cup mounted at-the end ofthe stem, the column and basesupported by the stem, in combination t with a second hand piece movablewith relation to the first and. connected to a portion' of the vacuumcup, whereby the-vacuum cup may be lifted at one point to admit airthereunder, said second hand piece reciprocable withthe rst hand piece.

4. They herein described portable stand comprising a base, a hollowcolumn, a stem passing through the'colurnn, and having a projecting handpiece,`9y vacuum cup mount* ed at the end of the stem,.the column andbase supported by the stem, in combination with a second hand niecemovable with relation to the first andv connected to a portion or' thevacuum cup, wherebythe lvacuum cup may be lifted at one point -to admitair thereunder, said second hand piece reciprocable with the first hand`piece, a spring normally holding the'two hand pieces together.

5. The herein described portable stand comprising a base, a hollowcolumn, a stem under, said second hand piece reciprocable' withthe'first hand piece, a spring normally holding the two hand piecestogether, a fleXible connection between the second hand piece and thevacuum cup.

6. The herein described stand having a vacuum cup, a lug integral withthe vacuum cup near its perimeter and means for lifting the lug touncover a portion of the perimeter in advance of theentire edge of i thecup.` Y j Signed at New Yor-k city, New York, this 23rd day of March1914.

l WILLIAM P. DUNHAM. Witnesses:

J. W. DNHM,l WM.' B. BROOKS.)

